[
https://issues.apache.org/jira/browse/LUCENE-5352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13835460#comment-13835460
]
Adrien Grand commented on LUCENE-5352:
--------------------------------------
I ran tests as well and got similar results.
It may be possible to optimize this reader (maybe reversing the bytes in the
call to readLong takes substantial time on little-endian computers (just
guessing)?) but taking a step back, I'm wondering that maybe this aligned
format should be deprecated. As [~toke] noted last year, the in-memory impl is
not faster than Packed64 on all CPUs, so if the speed-up is not clear for
disk-based structures either, I think we should just deprecate it?
> PackedInts.fastestFormatAndBits returns slower format for Direct
> ----------------------------------------------------------------
>
> Key: LUCENE-5352
> URL: https://issues.apache.org/jira/browse/LUCENE-5352
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
>
> from some simple testing, DirectPacked64SingleBlockReader seems slower than
> DirectPackedReader (at least in a few cases i tested, more testing needed,
> but look at the code).
> this is unintuitive, because by passing e.g. FASTER you are making it slower.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
